Sealing system having leakage sensing function

Abstract

One embodiment of the present invention relates to a sealing system having a leakage sensing function. A leakage sensing unit is arranged in a sealed space which is formed between sealing members of a sealing device body so as to sense, in real time, whether the sealing members are leaking, wherein a sensing value of the leakage sensing unit can be transmitted to the outside by using a communication unit.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is entitled to the benefit of and incorporates by reference subject matter disclosed in the International Patent Application No. PCT / KR2014 / 012879 filed on Dec. 26, 2014, Korean Patent Application No. 10-2014-0036056 filed on Mar. 27, 2014 and Korean Patent Application No. 10-2014-0179198 filed on Dec. 12, 2014.TECHNICAL FIELD[0002]Embodiments of the present invention relate to a sealing system for sealing a drive shaft that performs a rotary motion or a reciprocating rectilinear motion, and more particularly, to a sealing system having a leakage sensing function to quickly and accurately sense whether sealing members of the sealing system are leaking.BACKGROUND ART[0003]In general, a mechanism such as a gearbox, a chemical pump, a stirrer, a mixer, a reactor, a transmission, a drier, or a compressor includes a drive shaft, and a rotary sealing device is installed on the drive shaft to prevent a leakage along the drive sha...

AI Technical Summary

Benefits of technology

[0038]According to an embodiment of the present invention, a sealing system may quickly and accurately sense whether sealing members are leaking by disposing a leakage sensing unit in a sealed space formed between the sealing members of a sealing device body. Thus, a leakage accident may be prevented in advance by accurately diagnosing a time to replace the sealing members. Further, states of the sealing members may be accurately verified in real time, and thus a time of use of the sealing members may be maximized, whereby a maintenance cost of the sealing device body may be reduced.

[0039]According to an embodiment of the present invention, a sealing system may be provided in a structure in which a leakage sensing unit is dispose in a sensing hole formed in a housing of a sealing device body, and thus the sealing system may be simply applicable to various types of sealing systems without greatly changing a structure of the sealing device body. That is, the embodiment may be conveniently applicable to a lip seal type sealing system, a mechanical seal type sealing system, and a radial shaft seal type sealing system.

[0040]According to an embodiment of the present invention, a sealing system may inform a manager of a value sensed by a leakage sensing unit in real time through a terminal, and inform a manager in a management office of the value sensed by the leakage sensing unit in real time through a display and an alarm. Thus, the manager in the management office or the outside manager may check the state of the sealing system in real time, thereby accurately establishing an operation plan for the sealing system and efficiently establishing an operation plan for a mechanism including the sealing system and a relevant facility.

[0041]According to an embodiment of the present invention, a sealing system may allow a manager to transmit a predetermined instruction to a controller through a terminal, and thus the manager may suitably control an operation of a drive shaft in real time based on a value sensed by a leakage sensing unit.

[0042]According to an embodiment of the present invention, a sealing system may be provided in a structure in which a leakage sensing unit is installed through a sensing hole from outside of a housing of a sealing device body, and thus the leakage sensing unit may be maintained and conveniently replaced with another type of leakage sensing unit without disassembling the sealing device body. Thus, various modifications may be made to the leakage sensing unit based on a target in which the sealing system is to be installed, and accordingly a single sealing device body may be applicable to various fields.

Problems solved by technology

However, the mechanical seal type rotary sealing device has a complex structure, has difficulties in maintenance, includes a number of components, and requires a great manufacturing cost.

However, when compared to the mechanical seal type sealing device, the lip seal type rotary sealing device has a low durability, a low sealing performance, and a low safety, and thus is applicable to a narrower field.

In particular, in the field in which a rotary sealing device is used, a leakage accident leads to serious casualties and damage of property.

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